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E3SM Diagnostics Package

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Table of Contents

  1. Documentation
  2. Overview
  3. Current State

Documentation

Overview

This diagnostics package is constructed for supporting the diagnostics task of DOE's Energy Exascale Earth System Model (E3SM) project. The goal of this work is to develop a comprehensive diagnostics package that:

  • fully integrates the functionality of NCAR's AMWG diagnostics package.
  • utilizes most updated observational datasets, including remote sensing, reanalysis and in-situ datasets.
  • interfaces with diagnostics developed from different E3SM focus groups: atmosphere group, coupled simulation group, land group.
  • interacts effectively with the PCMDI's metrics package and the ARM diagnostics package through a unifying framework: Community Diagnostics Package (CDP).
  • is flexible for user specified diagnostics and being configured for use by other climate models.

Current State

Algorithm and visualization codes for the AMWG Set 5, 7, 4, 3, 13, 1, 14 diagnostics, namely lat-lon contour plots (Figure 1), polar contour plots (Figure 2), zonal mean 2d plots (Figure 3), zonal mean line plots (Figure 4), 2d joint histogram for COSP cloud simulator output (Figure 5), tables (Figure 6) and Taylor Diagrams (Figure 7) summarizing metrics, for climatology seasonal means, are implemented.

The package features built-in user diagnostics, by specifying user desired diagnostics regions and pressure levels for variables with the vertical dimension.

In addition to default model versus observation comparison, the package also provide support for model versus model and obs versus obs comparisons.

Figure1

Figure 1: An example of the lat-lon contour plots for air temperature at 850 mb with tropical ocean region considered

Figure2

Figure 2: An example of the polar contour plots for precipitation rate

Figure3

Figure 3: An example of the pressure-lat contour plots for air temperature

Figure4

Figure 4: An example of the zonal mean surface air temperature line plot

Figure5

Figure 5: An example of 2d joint histogram plot using COSP simulator output

Figure6

Figure 6: An example of table summarizing metrics calculated based on lat-lon contour plots diagnostics

Figure7

Figure 7: An example of Taylor diagram summarizing metrics calculated based on lat-lon contour plots diagnostics of several key variables

License

Copyright (c) 2018-2021, Energy Exascale Earth System Model Project All rights reserved

SPDX-License-Identifier: (BSD-3-Clause)

See LICENSE for details

Unlimited Open Source - BSD 3-clause Distribution LLNL-CODE-819717

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